multi-speed transmissions for electric vehicles

Product description

From an innovative cooperation development with partner Sala brings BMT drive solutions a modular multi-speed automated manual transmission (AMT) for electric vehicles.

  • 2-speed
  • 4-speed (under development)

With a patented special and almost silent claw ring circuit and its own synchronization software, we offer a unique solution. It has a considerably lower number of individual components and thus also scores with significant weight loss and minimal installation space – what the driving performance significantly improved compared to other ev transmissions. The gearbox is suitable for a variety of vehicles. Ranging from light and heavy commercial vehicles over cars, through to performance and sports cars.

A one-speed transmission can be delivered on-demand.

More about multi speed transmissions.

Key factors

Multi-speed transmissions

A multi-speed transmission has some benefits compared with a 1-speed transmissions. When a 1-speed transmission is used, you always need to make a compromise between high torque and top speed, while a multi-speed transmission optimizes both at the same time.

Also 2 gear ratios allow e-machine operation in better efficiency areas

  • Reduced requirement for nmax
  • Reduced requirement for Torque


Shifting technology

Our E-shifting technology is based on a “zero-backlash” dog clutch (no DCT).

This system has some specific characteristics:

  1. Fast & smooth shifting
  2. No friction release/heat input during shifting events
  3. Neutral position
  4. Power upshifting capable
  5. Transmission delivered with its own shifting control unit (easy CAN communication)
  6. Different modes according “driver DNA”



The ev transmission is available in:

Offset arrangements

Coaxial arrangements





Benefits of our unique shifting technology

Energy saving

Efficiency gains

Easy packaging

Cost attractive

Fast and smooth shifting


Our two-speed transmission can be used within sport cars, super cars & hyper cars all within a dual e-machine configuration.

Our 2-speed AMT can be used within heavy duty 40-tons (N3) with a dual e-machine configuration.

Currently a 4-speed AMT is under development for heavy duty.

Our two-speed transmission can be used within SUV in the C, D, E and F-segments. All with a single e-machine configuration.

Our ev transmission can be used within:

  • light-duty 3.5 tons (N1) with a single e-machine configuration
  • medium duty 7.5 tons (N2) with a dual e-machine configuration
  • medium duty 12 tons (N2) with a dual e-machine configuration